package main

import "fmt"

func validateUsername(username string) error {
	if !IsWhitespaceFree(username) {
		return fmt.Errorf(`username cannot contain spaces`)
	}
	if len(username) < 4 {
		return fmt.Errorf(`username too short`)
	}
	if len(username) > 1000 {
		return fmt.Errorf(`username too long`)
	}
	return nil
}

func validatePasswords(password, password2 string) error {
	if password != password2 {
		return fmt.Errorf(`the two password fields don't match`)
	}
	if len(password) == 0 {
		return fmt.Errorf(`password cannot be empty`)
	}
	return nil
}